First, this appears to be a very well made product. It was easy to install, and the water tastes great! Agree that it works well for coffee, too.

I was worried because I ordered and then found the installation instructions telling me pull out "spray" type faucets usually won't accept the adapters. Oh, oh. Well, 5 minutes with a piece of sandpaper allowed me to sand the plastic head of my faucet down to accept one of the supplied adapters. No leaks, the faucet works in both spray and normal modes, and the filter works.

Looking at the filter, it is easy to determine that the filter is much higher quality than my 'high end' faucet.